Acetylene-gas-generating lamp.



No. 638,893. Patented Dec. l2, |899. s. P. wATT.

AcETYLENE GAS GENEPATING LAMP. j

(Application led Feb. 2, 1899.) (No Model.)

Tm: ohms PETERS co, Pauw-umn., wAsmNc'roN. o. c.

Urrnn 'raras l PATENT muon.

SERN I). WATT, OFCI-IICAGO, ILLINOIS.

SPECIFICATION forming part of Letters Patent No. 638,898, dated December 12, 1899. Application filed February 2, 1899. Serial No. 704,235. (No model.)

T0 @ZZ whom t may concern:

Beit known that I, SERN P. VATT, residing at Chicago, in the county of Cook and State of Illinois, have invented a new and useful Gas- Generator and Lamp, of which the followingis a specification.

My invention relates to a device for generating acetylene gas; and its object is to provide for this purpose a novel and efficient generator in which the water-feed is positive and automatic in action.

My invention consists in using the principle of a needle-valve with peculiarly-constructed seats through which point of needle passes, extending below, arranged between the water-chamber and the carbid-chamber, for the purpose of obtaining the proper automatic feed, and for the sake of illustration only and Without any intention of limiting myself to the particular application or construction of my generator embodying the above general features I have shown such principle embodied in a lamp more particularly suitable for bicycles and other vehicles.

Other novel and advantageous features will be found in my invention, as will be apparent from the description hereinafter given.

In the accompanying drawings, Figure 1 is a sectional elevation of my gas-generatorand lamp with the water-distributer removed; Fig. 2, an elevation of the lens-holder front; Fig. 3, a sectional elevation of the carbidcup 5 Fig. 4, an elevation of the water-distributer with a portion of the coverin g broken away to show the perforated plates, and Fig. 5 a plan View of the water-distributer somewhat enlarged.

In Fig. 1, 1 is water-space. 2 is carbidchamber. 3 is diaphragm between carbid and water chambers. 4is top cap to water-chamber. 5 is a splash-diaphragm. 6 is bottom cap made to screw on to close carbid-chamber when charged. 7 is a rubber gasket. 8 is aloose metal disk. 9 is water-valve seat. 10 is water-valve. 11 is a tube with slit inside; 12, screw-thread on water-valve. 13 is nut in cap 4. 14 is water-plug. 15 is small vent in 14. 16 is strip about can to hold reflector-case in place and to carry lamp by. 17 is re'fiector and lens case. 18 is reflector. 19 is rivet in 16 and 17. 20 is wire spring to retain reflector. 21 is spring to retain glass crystal. 22 is burner-tube. 23 is gas-orifice. 24 is gas-valve. 25 is gas-tip.

In Fig. 4, 32 32 are perforations in sheetmetal making up water-distributer. 35 is longitudinal impression made in perforated sheets to take pin 3l when in place on inside of cup. 34 is larger impression made in same sheets to admit point of water-valve seat 9 when cup 30 is in place. The plates 36 are made to have one or more wings formed of two sheets of metal parallel, or. nearlyso, to

each other. Said wings are covered on outside by suitable absorbent material. (Not shown.

In Fig. 2, 27 is a notch to facilitate removal of wire 21.

The action of carbid-lamp is as follows: Unscrew plug 14, fill with water up to diaphragm 5, replace plug, unscrew cap G. Having placed distributing-plate (shown in Fig. 4) into carbid-cup, Fig. 3, by entering vertical pin 3l of cup into opening between plates at 35 and pressing the plates down to bottom of cup, fill carbid-cup partly full of crushed carbid and replace cup in chamber 2 and screw on cap 6. By so doing the feedingpoint of water-valve enters the opening at 34 in Fig. 4. The water is turned on by unscrewing lwater-valve 10. Then gas begins to generate, the valve 24 is opened and gas issuing from tip 25 is lightedin the usual manner. Action of disk S is to relieve the rubber gasket from action of cap other than direct pressure. The lamp is automatic and feed of water is controlled by the flow of gas allowed by use of the gas-Valve.

Although I have described more or less precise forms and details of construction, I do not wish to be understood as limiting myself thereto, as I contemplate changes in form, the proportion of parts, and they substitution of equivalents as circumstances may suggest or render expedient and without departing from the spirit of my invention.

W'hile the water-distributer may extend diametrically across the carbid-chamber, or substantially so, it is obvious that if the same should extend radially and not the whole distance across such construction would be within the scope and meaning of my invention and claims, and, furthermore, it is obvious that the plates composing the distributer are not IOO necessarily of two separate pieces, but that y a single piece folded over upon itself would answer the requirements.

I claiml. An acetylene-gas generator comprising a water-chamber, a carbid-chamber, means of communication between the chambers, and a water-distributer in the carbid-chamber comprising perforated metallic plates extending vertically substantially1 from bottom to top of the carbid-chamber and receiving the water fed from the water-chamber, such plates being arranged in close proximity to each other to distribute the water by capillary attraction.

2. An acetylene-gas generator comprising a water-chamber, a carbid-chamber, means of communication between the chambers, a pin extending upwardly from the bottom of the carbid-chamber, and a water-distributer in the carbid-chamber comprising vertical, perforated, metallic plates in close proximity and connected to said pin.

3. An acetylene-gas generator comprising a water-chamber, a carbid-chamber, means of communication between the chambers, a water-d istributer in the carbid-chamber com prising vertical perforated plates arranged in close proximity to each other and receiving the water fed from the water-chamber and distributing it outward into the carbid-chamber, and an outside covering on said plates to prevent entrance of carbid-dust into the perforations of said plates.

4. An acetylene-gas generator comprising` a "said chambers, a removable strip or band around said casing forming a combined bracket and means of attachment for the llame-chamber in position, a flame-chamber secured to said band and means of communication between the carbid-chamber and flamechamber.

6. An acetylene-gas lamp comprisinga cylindrical casing forming a water-chamber and a carbid-chamber, means of communication between said chambers, a casing forming a dame-chamber and a pin or rivet passing through said flame-chamber and band for securing the former in place, said band having its free ends bent as lugs to form a bracket.

SERN I. WATT.

Witnesses E. H. HICKS, D. C. BUTLER. 

